Feed-grinding mill



(no Model.)

3 Sheets-Sheet 1.

I 0.3. WINGE'R.

- FEED GRINDING MILL.

Patented Jan. 10,1882.

N. PETERS, Pholu-Lilhngnpher, Washinginn. n. c.

(No Model.) a sheets-sum 2.

I 0; EWINGB-R FEED GRINDING MILL. 310,252,165. Patented Jan. 10,1882,

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(No Model.)

38heets-Sheet-8. 0. E. WINGER.

FEED GRINDING MILL.

UNITED STATES PATENT ()FFICE.

OSWALD E. WINGER, OF FREEPORT, ILLINOIS.

FEED-GRINDING MILL.

SPECIFICATION forming part of Letters Patent No. 252,165, dated January 10, 1882. Application filed April 1, 1881. (No model.)

To all whom it may concern Be it known that I, QSWALD E. WINGER, of the city of Freeport, county of Stephenson, and State of Illinois, have invented a new and useful Improvement in Feed-Grinding Mills and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the annexed drawings, of which- 1 Figure 1 is a side elevation. Fig. 2 is a bottom view. Fig, 3 is avertical sectional view out through the line a: as, Fig. 2. Fig. 4 is a view of the central stationary burr, showing its connection with the hopper and revolving frame. Fig. 5 is a face view of an adjustable plate-wheel for holding one of the revolving burrs in position and connectin gthe same with the driving mechanism. Fig. 6 represents a face View of the annular burrs. Fig. 7 is a longitudinal view of the shaft which revolves the burrs, showing one of the plate-wheels attached thereto, one of the annular burrs adjusted to the plate-wheel and upon the drum or flange extending therefrom and encircling the 2 5 shaft, and upon which the three burrs are adjusted. Fig. Sis a face view of one of the annular burrs and its drum and shaft, Fig.9 is a perspective view of the central stationary burr and the hopper connected thereto; and Fig. 10 is a sectional view taken on the line 2 z, Fig.4.. 3

Like letters in differentfiguresrepresentlike parts. i v

The object of my invention isto obtain at a minimum cost a feed-grinding machine which may be operated by horse, steam, ,or other power, and which will do its work faster and with greater ease than those ordinarilyin use, and at the same time by automatic d'evicesso o adjust its working parts that the grinding-sur faces cannot wear themselves upon each other, and thus not only impair the utility of the machine, but intermix the abraded metallic particles with the ground feed. Itis obviousthat such an adjustment of'the grinding-surfaces must produce a more e venl yground and better quality of meal.

To enable others skilled in the art to under stand and utilize my invention, I will describe its construction and operation.

A, Figs. 1 and 2, represents a stationary aunular master-wheel, cast solidly with the legs or standards B B B B, firmly secured to a proper foundation or bed by the bolts a a and the basket-frame O G, which constitutes the main frame-work of the machine.

Into the gear of the annular wheel A a pinion, D, engages, which pinion is attached to the lower end of the vertical shaft E, the latter running in a journal-bearing in the revolving frame F. ()n the other end of theshaft E, and revolving in a horizontal plane, is a bevelwheel, G, which engages with a small bevelpinion, H, the latter serving to revolve the grindingburrs, as hereinafterdescribed. The

those of the revolving frame F, the point of I convergence J forming a hub or journal bearing in the center of and below theplane of the annular wheel A, into which the journal I is pivoted. The revolving frame F turns upon this pivotal point I, being thereby held centrally in position. A shoulder at the upper end, F, and a pin at l at the lower end of the journal I preventthe frame F from vertical movement. The frame F is further held centrally at the top by the anti-friction wheels K K K, Fig. 2, which turn on journals or gudgeons cast to the frame F, and are secured thereto by the pins m m m. These wheels r'evolve on the inside of theflange W, which project vertically from the periphery of the annular wheel A.

The diverging ends of the sweep or lever L L are secured by screws or bolts b b to the flange c on opposite sides of the frame F. The leverarms L L converge at a point, M, to which the horse is attached. As the horse traverses the circuit described by the sweep L L the frame F revolves upon the pivot I, carrying the pinion E around within the master-wheel A, causing the former to revolve. This likewise revolves the bevel-wheel G upon the same shaft, and the gearing of the latter, meshing in that of the pinion H,,l ikewise causes it to revolve and to actuate in its turn the grindin g-burrs. The pinion H may be cast either separately or solid with the plate-wheel N, Fig. 7, the flange or drum 0, and the shaft P.

On the end of the shaft P is a journal, d, which turns in the bearing 0, Figs. 1 and 3. On the shaft 1?,next to thejournald, a thread, it, is cut, on which are screwed the nuts ff, Figs. 2 and 3, which serve to hold the adjustable plate-wheels N and N and the burrs It, S, and R together, and by loosening or tightening to adjust the latter to grind coarse or fine. The annular burrs R and B have three holes, g g g, Figs. 6 and 8, in each, equallydistant from the center and from each other. Into these holes corresponding lugs or pins h h h upon the plate-wheels N and N,Figs. 5 and 7, are fitted,for thepurpose of communicating motion to the burrs R andR. The plate-wheel N has acircularflange, T,Fig. 5, upon its inner surface, ofthe same diameter as the drum Oand the same thickness as the burr B. This flange serves to hold the burr R centrally in position.

, Inside of this flange are cast thelugsii i, Fig.

5. When the plate wheels N and N are adjusted on the shaft P the lugs it i fit into cor-.

responding depressions jj j in the flange or drum 0, so that when N is driven N is driven, and the motion thereof being communicated, as shown, to the burrs It and R, the latter are revolved in the same direction and the same plane.

The burr S, Fig. 4, which is placed between the annular burrs R and R and has both of its sides furrowed, (the draft of the central and revolving burrs being in opposite or nearly opposite directions-that is to say, being tangential to the circle formed by the drum 0 and the flange T to facilitate grinding,) has a circular opening in the center which fits over the drum 0. On this central burr, S, are cast the lugs 7c and a wide flange, U, which latter is intended to prevent the feed from being thrown out from theburrs and scattered while being ground,-as well as to serve as a base and supportto the hopper V. On opposite sides of the revolving frame F, Fig. 4, are also lugs l I, which fit into the notches formed between the lugs 70 7c and thelower extremities of the flange U of the central burr, S, and serve to support the same in position, as well as to prevent it from revolving. This device permits such lateral movement of the central burr, S, as may be necessary to adjust its surface to those of the burrs R and It as they revolve, and by this means all unnecessary wear which mightotherwise be produced by inequalities of surface is obviated.

Another desirable feature of my invention is the fitting of the annular burrs R and R upon the plate-wheels N and N by means of the lugs or pins h h h, instead of having the plate-wheels solid with the burrs. By this device the burrs R and B, when worn away, may readily be removed and replaced by new ones at a minimum of cost and trouble.

In the top of the central burr, S, is an oblong'orifice, of nearly the width ofthe burr, into which the material to be ground is fed from the hopper. Corresponding to this orifice a segmental notch, X, Fig. 4, is cut upward in the burr S from its inner circle nearly to its periphery. This permits lateral contact of the material from the hopper immediately with the face of the revolving burrs It and R, passing readily into the bosom of thelatter. At the point Y, where the grain first comes in contact with the middle burr, it is made thinner, and the furrows are deeper than at the opposite side of the opening X. From the point Y to the opposite side of the opening X the furrows are graduated, being made shallower as they near the latter-point, thus enabling the feed, which may first be introduced in large grains or particles, to be constantly ground finer as it approaches the point last named. This arrangement enables the machine to feed more readily and prevents clogg ing.

To form the bosom, the inner surfaces of the burrs are beveled in the usual manner, a flat furroweil surface or skirt being left near the periphery of each burr, as shown in Figs. 9 and 10.

It is obviousthat the vertical revolving in terchangeable burrs must overcome many of the objections to the machines heretofore in use.

It is a well-known fact that the weight of the sweep in the ordinary cone grinding-machine produces a constant deflection of the revolving burr from the plane of its revolution, thus producing a constant friction of the surfaces where the weight is applied and an unnecessary and useless wearing of the same, while the opposite surfaces of the burrs are separated from each other and prevented from fulfilling their purpose. Thus the grindingsurface is constantly lessened, while the wear isiucreased. All of the gearing in my machine being adjusted to the revolving frame F, the weight of the sweep cannot affect it.

It is obvious that by the use of the two revolving burrs with the double-faced stationary burr the grinding-surface of the machine is doubled. The automatic adjustment of the burrs described serves also to prevent the killing and "gumming? of the meal, so common and objectionable in the usual mode of grinding.

My machine may be readily adapted to the use of other than horse-power by connecting gearing or a pulley to the lower extremity of the pivoted journal I and actuating the same by a shaft or belt from an engine, windmill, or other motive power.

Having described my invention, what I desire to secure by Letters Patent is'- 1. In afeed-grinding machine, the combina tion, with a middle double-faced non-rotating burr having a slight lateral play in its supports, of two revolving burrs co-operating with said middle burr, whereby the space between the burrs is automatically regulated, substantially as described.

2. In a feed-grinding machine, the adjusta- IlO thickened to a point at or near thecompletion of the circuit, in combination with the co-operating revolving burrs, substantially as de- I 5 scribed.

5. The stationary double-faced burr, the furrows of which are deeper at the point where the grain first comes in contact with it and grow gradually shallower toa point at or near 20 the completion of the circuit, in combination with the cooperating revolving burrs, substantially as described, for the purpose specified.

OSWALD E. WINGER.

V Witnesses E. B. WINGER, A. H.-BARSHINGER. 

